Thank you for the feed back, I will fix the typos.
About the too many power up on screen, I have played many games of this kind and it's something common in this type of games, but have plans to add some configuration in the graphics menu for player that don't like it (for example a bloom slider or having an option to deactivate the particles effects).
"on level up, a bunch of buttons appear to select a powerup. if your mouse is in the middle of the screen, as the buttons appear you technically "mouse over" all of them , playing their sounds. ideally make the colliders for these buttons inactive while the animation plays, and active once its done. this is a very minor thing."
I didn't know that, I will fix it. Thanks.